Established model

Personas

Alan Cooper · 1998

A small number of specific, named, fictional people standing in for real patterns of behaviour.

Its place in the frameworkMarket CoreTarget Audience

What it does

Introduced in software design to stop teams building for an elastic user who conveniently wants whatever is easiest to build. The mechanism is specificity: a named person with a particular situation and a particular constraint cannot be quietly redefined mid-argument, and that is the entire benefit.

Reach for it when
When design or marketing decisions are being settled by whoever imagines the user most confidently.
Where it stops
Invented rather than researched, a persona is only a projection of the team, and demographic detail added for colour invites reasoning from stereotype.

Alan Cooper, The Inmates Are Running the Asylum, Sams, 1998.

Why it sits at Target Audience

Who the organisation is actually trying to reach: how they divide, what they are worth, and where they can be found.

A model is only useful when you reach for it at the right moment. This one answers a question that arises here — so it is filed here, and nowhere else. These are the working areas it serves:

All of Target Audience

What it touches elsewhere

Nothing in a business is decided on its own. A conclusion reached with this model at Target Audience lands in these other cores, whether or not anyone follows it there.

Filed at the same place

These answer questions that arise at Target Audience too. Where they disagree with this one, the disagreement is the useful part.

Elsewhere in Market Core

These are other people’s models, named here so you can go to the source and use them properly. The Omnigoal is not affiliated with their authors and is not endorsed by them; nothing of theirs is reproduced here — no canvas, no diagram, no wording. Each is described in our own words, with the originator credited, because the framework is a place to put thinking, not a replacement for the people who did it. Model names and trademarks belong to their respective owners and are used here only to refer to the work itself.

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